Word: perlis
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Dates: during 1950-1959
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...cantilevered truss made up of tetrahedrons (four-sided pyramids) and octahedrons (eight-sided figures), which looks like something made by a giant playing with an Erector set. Made of lightweight aluminum tubes, the "octet" truss cantilevers outward 60 ft. from a single support, weighs only 3 lbs. per sq. ft. v. some 100 lbs. for a comparable structure in conventional steel beams...
...along it, rather like mechanical waves traveling along a coil spring. The Fort Monmouth scientists found that the Argus explosions started just such waves in a layer of plasma about 1,500 miles high. The waves were about 1,000 miles long, and they traveled at several thousand miles per second, spreading around the earth from the South Atlantic like ripples around a spherical pond...
...real G.N.P. by the total production force, computed a 1929-57 productivity trend line showing an average 1.6% rise. The difference between a 1.3% labor-force rise and a 1.6% productivity rise, said C.E.D., produced "well over half of the growth in production in recent decades." In 1959 output per man is 60% greater than in 1929 despite shorter hours...
Disposable Income. After allowing for prices and higher taxes, has real income kept pace with productivity? Yes, said C.E.D. Using its 1954 constant-dollar test, and allowing for steeper taxes, C.E.D. found that from 1929 to 1957 per capita disposable income also rose 1.6% a year. Since 1947, the rise has been almost 2% and gave the average U.S. citizen in mid-1959 a real income 26% higher than in 1947 and 60% higher than...
Each company pays Flight Safety $750 per pilot for the first year's instruction, $600 for each additional year's refresher course. Ueltschi estimates that Flight Safety's charges are one-tenth of what it would cost a company to maintain sufficient instructors, equipment and flight procedures. In addition, the pilots put in time (cost to the companies: $50 an hour) in a twin-engine translator and a just purchased Convair 340-440 simulator that can simulate every possible flight condition from ice to fire to mechanical malfunction. "There is not a pilot anywhere we could...